Die-head.



J. A. BECKER.

DIE HEAD.

APPLICATION FILED JULY a, 1913.

1 1 02,7 1 2. Patented July 7, 1914,

2 SHEETS-BHEBT 1.

'FHE NORRIS PETERS CO.. PHOTO-LITHO.` WASHING! l.

I. A. BECK-1ER..

DIE HEAD.

APPLIOATION FILED JULY 3, 1913.

1,102,71 2. Patented July 7, 1914,

. 2 SHEETSSHEET Z.

I?? U ento:

THE .NORRIS PETERS CAO PHOTO-LITHO.. W'ASHING'TON. D. C,

OFFICE.

JAMES A. BEC'HER, OF CHICAGO, ILLINOIS.

DIE-HEAD.

- Specification of Letters Patent.

` Patented July '7, 1914.

Application filed July 3, 1913. Serial No. 777,362.

To all 'whom t may concern j.

Be it known that I, JAMES A. BECHER, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Die-Heads; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in die heads and more particularly to simple and efficient means for mounting, manipulating and adjusting the parts which carry the dies or cutters, and the invention consists in certain novel features of construction and combinations of parts as hereinafter set forth and po-inted out in the claims.

In the accompanying drawings; Figure 1 is a side elevation of a die head and operating mechanism embodying my invention; Fig. 2 is a face view 0f the same; Fig. 3 is a vsectional view on the line 3 3 of Fig, 1; Fig. 4 is a view in section on line 4- 4 of Fig. 1, and Fig. 5 is a sectional view on the line 5 5 of Fig. 2.

1 represents a barrel or tubular shaft section, to be connected in any suitable manner with a driving element. The barrel 1 is externally threaded at one end for the reception of a flanged collar 2 which forms a Abea-ring for a cushion abutment 3 for a purpose hereinafter explained. At its forward end, the barrel is made with a head 4 which carries two jaws 5 5. Each of .said

jaws is made with a semi-circular enlargement 6 having recesses for the accommodation of dies or cutters 7 which are held in place by the heads of screws 8 (one side of each of which screw-heads `is flattened to facilitate'the insertion and removal of the.

dies) and the end thrust of said dies isy sustained by suitable posts 8EL fixed to the jaws. The jaws 5 5 cooperate to form an elongated divided die head, and are separated from each other on `diagonal parallel lines, as indicated in Fig. 2. Above and below or at respective sides of the central opening ofthe divided die head, springs 9 9 are disposed between the two jaws,

forming said die head. Each jaw 5 is pivotally attached near one end, to the head 4.

.engage said plates and hold them in place.

The plate 13 thus attached to one jaw, overlaps the other jaw and said plates thus servek to hold the jaws properly in place against the head 4. By connecting the jaws 5 with the head 4 in t-he manner above explained, adjust-ment for wear of the jaws against the face of the head 4 can be readily made. lSuch adjustment may be effected by removing jaws and filing-the outer ends of the sleeveslO.v

An-annular disk 14 encircles the barrel 1 and is movable lengthwise of the latter between the head 4 and the abutment 3, being caused to move toward the latter by means of springs 15 interposed between said disk and the head 4 of barrel 1, and being movable in the opposite or forward direction by means which will be presently explained. The disk 14 is provided at diametrically opposite points with recessed arms 16 and with sockets or perforations, in which forwardly projecting pins 17 are secured. The pins 17 project forwardly through recesses 18 in the 'head 4 and their conical or tapering ends 19 arev adapted to cooperate with beveled shoes 20 secured (at diametrically opposite point-s) tov the respective jaws 5. It is apparent that if the disk 14 be moved forwardly, the cooperation of the tapering forward ends ofthe pins 17 with the shoes 20, will cause the jaws 5 to approach each other and the dies to engage the work.

The disk 14 is made with an annular flange or hub 2l, on which a ring 22 is loosely mounted so as to be immediately in rear of the butt ends of the pins 17. A

`yoke 23 encircles the ring 22 and is pivotally connected at diametr-icallyf `opposite assumed that when the parts are i terminates being locked by reason points with said ring 22, by means of pivot pins 24 carried by said yoke in horizontal alinement with each other. The yoke 23 is made with an upwardlyvprojecting arm 25v pro-vements may be used. The yoke 24 is also provided `with a depending arm 28 which secured tothe bed (not shown) of the machine. A shaft 30 is mounted in the bracket 29 and is provided with a forwardly projecting arm 31 Vand a rearwardly pro-l jecting arm 32. The bracket y29 is providedfwith a rearwardly projectingwarm 33 disposed over the arm 32 and a set'screw 33a passes downwardly the said arm 33 in position to be engaged by the armI 32 and thus ylimit ther'movement ofthe shaft 30.v An operating lever 34 'is also' secured to the shaft 30 and movement of the latter in the l opposite direction-to that above referred to, l will be limited by engagement of said operating lever with a spring arm 35, as shown by dotted lines in Fig. 1. A Lset screw 36 asses horizontally through the upper arm 25 of the yoke I23 and engagesthe free end of the fixed arm 27, for the purpose of adjustments which will be hereinafter explained.-

Inthe drawings, the parts are shown, in full lines, in the positions which they will assume when in operatiom'the diesbeing set, and the parts which carry and control them, of the fact thatthe arm 31 on shaft 30 is disposed exactly at right` angles to thelower arm 28 of the yoke, `which is.` pressing against said arm. 1n other words, the arm 31 andthe shaft to which it is secured are on a dead center with respect to the pressure 'of the yoke against the free end of said arm. Let it be working positions as shown in full lines in the drawings and that it is desired that the dies shall be made to cut a little deeper.`

This may be accomplished by adjusting the set screw 36=so as to move the yoke slightly in a forward direction. The result of such slight forward adjustment of the yoke, will be a slight forward movement of the disk y,14 land the pins 17, and coperation'of said pins with the beveled shoes 20011 the jaws 5, will cause sufficient inward movement of the latter to effect the desired adjustment of the? dies for a -deeper cut. By adjustingy the screw 36 in the-reverse direction, the pins 17 will be permitted tomove rearwardly (by the operationyof the springs 15) and the jaws 5 will bev caused to recede bythe. action'lof .the spring's9, thus reducing 'the near a bracket 29 adapted to be v in their.

depthof cut of the dies. The adjustments may be effected without stopping the machine. When it is desired to open the jaws composing the divided die head, the operator will move the hand lever 34 rearwardly vto raise the arm 31; The springs 15 will now be free to move the yoke 23, disk 14,

pins 17 and ring 22,' rearwardly, thus withdrawing the pins from the jaws 5 and perbeopened by the acmitting the latter to tion` of the springs 9. The lever 34 will be limited in its rearward movement by engagement with the spring arm 35, and disk 14 and parts carriedthereby will be cushioned bythe yabutment 3;

It is apparentthat when the operating lever 34 is moved forwardly from the dotted line position to the full line position shown in Fig. 1, the yoke 23 and disk 14 will yalso be moved forwardly (compressing the springs 15) and that the cooperation of the'tap'ering ends of the pins 17 with the jaw shoes 20 will cause the jaws to be closed and the dies moved to` operative positions.

Having fully described my invention what I claim as new and desire `to secure by Letters-Patent,`is:-

' 1. The combination kwith a support,'of

die-carrying jaws pivotally attached to saidy support, a 'guide plate attached to each jaw and projecting over the other, and means for operating said jaws.`

y2. The combination with a barrel provided at one end with a head, of sleeves secured to said head and Aprojecting beyond the same, die-carrying jaws loosely mounted on said sleeves, and boltsp'assing through said sleeves, each of said bolts provided at f its ends with heads, one-of which is' removable. j

3. The combination'with'a barrel a head at one end and sleeves secured to and having Y projecting beyond said head, of die-carry-v ingfjaws pivotally vmounted on said sleeves and bearing against said head, bolts passing through said sleeves and guide plates for the jaws held inv place by said bolts.

4.v They combination with a die heard, dies carried thereby, operating means for said des,fand a fixed arm, of a yoke embracing said operating means and pivotally connected therewith, said yoke having an arm provided with wings, loosely embracing said fixed' arm, a set screw passing .through said yoke arm and engaging the fixed arm, said vyoke having another arm, and a lever cooperating with said last-mentioned arm to move the yoke. j

5.'The combination with a die head, dies carried thereby, operating means for said dies, and a fixed arm, of a yokek embracing said operating means and pivotally connected therewith, said yoke having an arm pro jecting in one direction therefrom and cospecification in the presence of tvvo subscrib-A operating with the liXed arm, said yoke having Witnesses. ing another arm a shaft an arm projecting from said shhft and zidapted to engage JAMES A BECHER 5 the last-mentioned yoke arm, a lever secured Witnesses:

to said shaft, and a stop for said lever. M. E. LOCKE, In testimony whereof, I have signed this WM. A. SCHNEIDER.

Copies o! this pltent may be obtained for ve cent each, by addressing the Commissioner of Patents. Washington, D. C. 

